scholarly journals Effect of Transplantation of Bone Marrow Derived Mesenchymal Stem Cells and Platelets Rich Plasma on Experimental Model of Radiation Induced Oral Mucosal Injury in Albino Rats

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Basma Elsaadany ◽  
Samar El Kholy ◽  
Dalia El Rouby ◽  
Laila Rashed ◽  
Tarek Shouman
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Platelet Rich Plasma ◽  
Synergetic Effect ◽  
Neck Region ◽  
Control Group ◽  
Albino Rats ◽  
Histological Structure ◽  
Apoptotic Activity

Normal tissue damage following radiotherapy is still a major problem in cancer treatment. Therefore, the current work aimed at exploring the possible role of systemically injected bone marrow derived mesenchymal stem cells (BM-MSCs) and/or locally injected platelet rich plasma (PRP) in ameliorating the side effects of ionizing radiation on the rat’s tongue. Twelve rats served as control group (N) and 48 rats received a single radiation dose of 13 Gy to the head and neck region; then, they were equally divided into 4 experimental groups: irradiated only (C), irradiated + MSCs (S), irradiated + (PRP) (P), and combined group (PS). Animal scarification occurred in 3 and 7 days after radiation. Then, tongues were dissected and examined histologically and for expression of bcl-2 by RT-PCR. Histological examination of the treated groups (S), (P), and (PS) revealed an obvious improvement in the histological structure of the tongue, compared to group (C), in addition to upregulated expression of bcl-2, indicating decreased apoptotic activity.Conclusion. BM-MSCs and PRP have shown positive effect in minimizing the epithelial atrophy of normal oral mucosa after regional radiotherapy, which was emphasized by decreasing apoptotic activity in these tissues. Nevertheless, combined use of BM-MSCs and PRP did not reveal the assumed synergetic effect in oral tissue protection.

scholarly journals Effect of a Decellularized Omentum Scaffold with Combination of Mesenchymal Stem Cells and Platelet-Rich Plasma on Healing of Critical-Sized Bone Defect: A Rat Model

2021 ◽  
Vol 11 (22) ◽  
pp. 10900
Author(s):  
Abdulsamet Emet ◽  
Erdi Ozdemir ◽  
Duygu Uckan Cetinkaya ◽  
Emine Kilic ◽  
Ramin Hashemihesar ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Platelet Rich Plasma ◽  
Bone Defects ◽  
Control Group ◽  
Albino Rats ◽  
Group 5 ◽  
Group 2 ◽  
Wistar Albino Rats ◽  
Critical Bone Defects

The high costs and extensive time needed for the treatment of critical-sized bone defects are still major clinical concerns in orthopedic surgery; therefore, researchers continue to look for more cost and time-effective methods. This study aims to investigate the effects of a decellularized omentum scaffold with a combination of platelet-rich plasma (PRP) and mesenchymal stem cells on the healing of critical-sized bone defects. Wistar albino rats (n = 30) were investigated in five groups. Critical-sized bone defects were formed on bilateral radius shafts. No scaffold, decellularized omentum, omentum with PRP and omentum + mesenchymal stem cells was used in group 1 (control group), 2, 3 and 4, respectively. In addition, omentum with a combination of mesenchymal stem cells +PRP was used in group 5. After 6 weeks, both radiological and histological healing were evaluated comparatively among the groups. After the use of a decellularized omentum scaffold, vitality of new cells was maintained, and new bone formation occurred. When compared to the control group, radiological healing was significantly better (p = 0.047) in the omentum and omentum + PRP-treated groups. Furthermore, histological healing was better in the omentum and omentum + PRP-treated groups than the control group (p = 0.001). The use of a decellularized omentum scaffold is suitable in the healing of critical bone defects.

scholarly journals Effect of a Decellularized Omentum Scaffold With Combination of Mesenchymal Stem Cells and Platelet Rich Plasma on Healing of Critical-sized Bone Defect

2021 ◽  
Author(s):  
Abdulsamet Emet ◽  
Erdi Ozdemir ◽  
Duygu Uckan Cetinkaya ◽  
Emine Kilic ◽  
Ali Celalettin Sinan Yuruker ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Platelet Rich Plasma ◽  
Bone Defects ◽  
Control Group ◽  
Albino Rats ◽  
Group 5 ◽  
Group 2 ◽  
New Research ◽  
Critical Bone Defects

Abstract Background: High-cost and the long time needed for the treatment of critical-sized bone defects is still major clinical concern in orthopedic surgery, therefore new research continues to identify more cost and time-effective methods. In this study, we aimed to investigate the effect of a decellularized omentum scaffold with a combination of platelet-rich plasma (PRP) and mesenchymal stem cells on the healing of critical- sized bone defects. Materlials and methods: Wistar albino rats (n­=30) were investigated in five groups. Critical-sized bone defects were formed on bilateral radius shafts. To increase healing, no scaffold, decellularized omentum, omentum with with PRP and omentum mesenchymal stem cells was used in group 1 (control group) , 2, 3 and 4 respectively. In addition omentum with a combination of mesenchymal stem cells and PRP was used in group 5. After 6 weeks, both radiological and histological healing were evaluated comparatively among groups. Results: After use of decellularized omentum scaffold, vitality of new cells maintained, new bone formation occurred. When compared to control group, radiological healing was statistically significantly better in omentum and omentum with PRP-treated groups (p=0.047). Furthermore histological healing was better in the omentum and omentum with PRP-treated groups than both control and omentum with mesenchymal stem cell-treated groups according to Salkeld Scoring System (p=0.001).Conclusion: The use of decellularized omentum scaffold is suitable in the healing of critical bone defects.

scholarly journals Effect of Activated Platelet-Rich Plasma on Chondrogenic Differentiation of Rabbit Bone Marrow-Derived Mesenchymal Stem Cells

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Zhen Wang ◽  
Zheng Wang ◽  
Bin Zhang ◽  
Qinghua Zhao ◽  
Yubao Liu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Chondrogenic Differentiation ◽  
Platelet Rich Plasma ◽  
Cell Counting ◽  
Control Group ◽  
Chondrogenic Medium ◽  
Rabbit Bone ◽  
Fetal Bovine

We aimed to evaluate the effect of activated platelet-rich plasma (PRP) on proliferation and chondrogenic differentiation of bone marrow-derived mesenchymal stem cells (BMSCs). Six mature male rabbits were included in this study. PRP was obtained by two-step centrifugation from whole blood, and it was activated using CaCl2 solution. BMSCs were isolated and proliferated from bone marrow of rabbits and characterized by flow cytometry. Passage 3 BMSCs were cultured in high-glucose Dulbecco’s modified Eagle’s medium (HG-DMEM) with the four different compositions for consecutive 7 days, including 10% fetal bovine serum, 5% PRP, 10% PRP, and 15% PRP. Cell counting assays were performed to evaluate the cell proliferation of BMSCs. BMSCs ( 5 × 10 5 cells/well in 6-well plates) were induced in four conditions for 21 days to chondrogenic differentiation evaluation, including commercial chondrogenic medium (control), 5% PRP (HG-DMEM+5% PRP), 10% PRP (HG-DMEM+10% PRP), and 15% PRP (HG-DMEM+15% PRP). The gene expression levels of ACAN, COL2A1, and SOX9 in pellets were detected. Morphological and pathological assessments were performed by the blind observer. After purifying, the percentages of cells with CD105(+)/CD34(−) and CD44(+)/CD45(−) were 96.5% and 92.9%, respectively. The proliferation of BMSCs was enhanced in all groups, and 10% PRP revealed more significant outcome than the others from day 5. The levels of ACAN, COL2A1, and SOX9 were lower in the three PRP groups than control group, but the levels of ACAN and SOX9 were higher in 10% PRP group than 5% and 15% PRP groups. Histological examinations showed that 10% PRP-treated pellets had more regular appearance, larger size, and abundant extracellular matrix than 5% or 10% PRP groups, but still inferior to commercial chondrogenic medium. In conclusion, our results show that PRP may enhance the proliferation of rabbit BMSCs. However, PRP have limited effect on chondrogenic differentiation in comparison with commercial chondrogenic medium in pellets culture.

Bone Marrow Mesenchymal Stem Cells (BMSCs) Transplantation Alleviates Acute Pancreatitis Through Inhibiting Inflammation and Promoting Caspase-8 Apoptosis Pathway

2022 ◽  
Vol 12 (5) ◽  
pp. 1034-1039
Author(s):  
Xiaoxiang Wang ◽  
Lan Yu ◽  
Xing Xiong ◽  
Yao Chen ◽  
Bo Men
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Acute Pancreatitis ◽  
Mesenchymal Stem Cells ◽  
Serum Amylase ◽  
Inflammatory Factors ◽  
Control Group ◽  
Caspase 8 ◽  
Apoptosis Pathway ◽  
Marrow Mesenchymal Stem Cells

Bone marrow mesenchymal stem cells (BMSCs) are capable of multipolar differentiation and repairing injured tissues. Herein, we aimed to investigate the mechanism by how BMSCs modulate the apoptotic pathway in the acute pancreatitis (AP). In this study, primary BMSCs were cultured and administrated into 10 AP mice while 10 healthy mice were taken as a blank group and 10 AP mice as a control group. The mouse pancreatic tissues were assessed by HE staining and evaluated by pancreatitis score and serum amylase detection. Level of inflammatory factors CRP and TNF-α was measured by ELISA and PIPK1, PIPK3, MLKL and Caspase-8 expression was detected by RT-qPCR and Western blot. The pancreatitis score (7.29±1.36) and the serum amylase score of (453.66±103.67) mu/ml of BMSCs group was significantly higher than that of control group, indicating increased tissue repair after BMSCs treatment. BMSCs group exhibited a higher level of CRP (711.01±115.31) and TNF-α (132.81±22.13) in serum compared to control group (p < 0.05). PIPK1, PIPK3, and MLKL expression in BMSCs group decreased (p < 0.05) whereas Caspase-8 was increased (p < 0.05). On the other hand, BMSCs group presented upregulated PIPK1, PIPK3, and MLKL (p < 0.05) and downregulated Caspase-8 (p < 0.05). In conclusion, BMSCs regulate cell apoptosis by upregulating Caspase-8 expression, and downregulating PIPK1, PIPK3 and MLKL level, thereby alleviating the inflammation in AP.

Transplantation of Bone Marrow–Derived Mesenchymal Stem Cells, Platelet-Rich Plasma, and Fibrin Glue for Periodontal Regeneration

2019 ◽  
Vol 39 (1) ◽  
pp. e32-e45 ◽  
Author(s):  
Mahdieh Rezaei ◽  
Shahram Jamshidi ◽  
Anna Saffarpour ◽  
Mahdi Ashouri ◽  
Reza Rahbarghazi ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Fibrin Glue ◽  
Platelet Rich Plasma ◽  
Periodontal Regeneration
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